# Chukar

- **MSHA mine ID:** 2602481
- **Status:** Abandoned
- **Type / commodity:** Underground / Gold Ore
- **Location:** Eureka, NV
- **Operator:** Nevada Gold Mines LLC
- **Controller:** Barrick Nevada Holding LLC; Newmont USA Limited
- **Public source rows linked:** 3,459
- **Source coverage:** 16 / 20
- **Generated:** 2026-10-13T11:26:59.401Z

## Current entity hierarchy

**Barrick Nevada Holding LLC; Newmont USA Limited (0149763) → Nevada Gold Mines LLC (0165474) → Chukar (2602481)**

Current identity source: `msha-mines`. This is a current snapshot, not a historical claim.

## Controller and operator valid-time history

- **Newmont Corporation → Newmont USA Limited:** 2002-01-17 through 2008-05-31; derived from co-tenure at mine 2602481; source `msha-controller-operator-history`.
- **Ronald W  Guill → Small Mine Development LLC:** 2008-06-01 through 2009-12-31; derived from co-tenure at mine 2602481; source `msha-controller-operator-history`.
- **Newmont Corporation → Newmont USA Limited:** 2010-01-01 through 2019-07-22; derived from co-tenure at mine 2602481; source `msha-controller-operator-history`.
- **Keith  Jones → Small Mine Development LLC:** 2011-01-28 through 2009-12-31; derived from co-tenure at mine 2602481; source `msha-controller-operator-history`.
- **Newmont USA Limited et al → Nevada Gold Mines LLC:** 2019-07-23 through current/open; derived from co-tenure at mine 2602481; source `msha-controller-operator-history`.
- **Barrick Nevada Holding LLC et al → Nevada Gold Mines LLC:** 2019-07-23 through current/open; derived from co-tenure at mine 2602481; source `msha-controller-operator-history`.

- History rows: 6
- Typed edges: 14
- Interval anomalies: 1
- Valid-time bounds: inclusive; date granularity; null end means open-ended in the upstream history row; not independent proof of present control.
- Transaction-time observation: 2026-10-13T11:19:05.459773+00:00.

## Assessment signals

1. **SAFETY — 0 since 2021:** Accidents and injuries 32 historical accident/injury rows; 0 coded fatalities and 216 lost days across the published record.
2. **COMPLIANCE — 0 since 2021:** Violations and penalties 239 violation rows across the full record; 48 carry an S&S flag and $106,313 appears in current assessed amounts.
3. **HEALTH — 162 samples:** Occupational health samples 159 personal; 3 area. 40 personal-sample rows have a published C/E ratio above 1; 0 noise rows have an action-level or PEL dose above 100%. These are separate measures, not a silica exceedance count. Silica results and sample status are shown separately.
4. **PRODUCTION — 0 tons:** Quarterly production and employment 11K employee hours and 22 summed average employees across reported subunits in the latest published quarter.
5. **LEGAL — 48 linked rows:** Contests, conferences and decisions 18 contested-violation rows, 18 civil-penalty docket/decision rows, and 12 conference records linked by issuance number.
6. **CONTRACTORS — 9 linked entities:** Contractors Contractors are linked through this mine’s violation or accident records. Their production and hours cover all their operations, so they are not included in this mine’s totals.
7. **INSPECTIONS — 0 since 2021:** Inspections 93 inspection events and 3K published inspection hours across the historical record.

## EIA annual operating context

No matched record in the 2024 EIA coal-public workbook. This may be inapplicable for a non-coal operation.

## Recent Title 30 crosswalk

Snapshot current through 2026-08-19.

- **30 CFR 57.15020 — Life jackets and belts.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-K/part-57/subpart-N/section-57.15020
- **30 CFR 57.13021 — High-pressure hose connections.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-K/part-57/subpart-L/section-57.13021
- **30 CFR 57.3360 — Ground support use.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-K/part-57/subpart-B/section-57.3360
- **30 CFR 57.12019 — Access to stationary electrical equipment or switchgear.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-K/part-57/subpart-K/section-57.12019
- **30 CFR 57.5060 — Limit on exposure to diesel particulate matter.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-K/part-57/subpart-D/section-57.5060
- **30 CFR 57.12004 — Electrical conductors.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-K/part-57/subpart-K/section-57.12004
- **30 CFR 57.6132 — Magazine requirements.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-K/part-57/subpart-E/section-57.6132
- **30 CFR 57.3200 — Correction of hazardous conditions.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-K/part-57/subpart-B/section-57.3200
- **30 CFR 57.14100 — Safety defects; examination, correction and records.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-K/part-57/subpart-M/section-57.14100
- **30 CFR 57.4131 — Surface fan installations and mine openings.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-K/part-57/subpart-C/section-57.4131
- **30 CFR 57.20001 — Intoxicating beverages and narcotics.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-K/part-57/subpart-S/section-57.20001
- **30 CFR 57.6160 — Main facilities.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-K/part-57/subpart-E/section-57.6160

## Source coverage

- **Accident, Injuries, and Illnesses:** 32 rows; 2002-05-28 through 2018-08-13; source ID `msha-accidents`
- **Addresses of Record:** 1 rows; 2020-03-24 through 2020-03-24; source ID `msha-addresses`
- **Metal and Nonmetal Area Samples:** 3 rows; 2009-05-06 through 2009-05-06; source ID `msha-area-samples`
- **Assessed Violations:** 229 rows; 2002-07-03 through 2020-01-27; source ID `msha-assessed-violations`
- **Civil Penalty Dockets and Decisions:** 18 rows; 2007-09-04 through 2015-01-07; source ID `msha-civil-penalty-dockets-decisions`
- **Conferences:** 12 rows; 2006-02-08 through 2018-03-14; source ID `msha-conferences`
- **Contested Violations:** 18 rows; 2007-03-26 through 2014-07-24; source ID `msha-contested-violations`
- **Contractor Employment and Production — Quarterly:** 1,967 rows; unknown through unknown; source ID `msha-contractor-production-quarterly`
- **Contractor Employment and Production — Yearly:** 456 rows; unknown through unknown; source ID `msha-contractor-production-yearly`
- **Controller and Operator History:** 6 rows; 2002-01-17 through 2019-07-23; source ID `msha-controller-operator-history`
- **Inspections:** 93 rows; 2002-03-18 through 2020-03-23; source ID `msha-inspections`
- **Mine Employment and Production — Quarterly:** 188 rows; unknown through unknown; source ID `msha-mine-production-quarterly`
- **Mine Employment and Production — Yearly:** 37 rows; unknown through unknown; source ID `msha-mine-production-yearly`
- **Mines:** 1 rows; unknown through unknown; source ID `msha-mines`
- **Metal and Nonmetal Personal Health Samples:** 159 rows; 2002-07-08 through 2018-06-19; source ID `msha-personal-health-samples`
- **Violations:** 239 rows; 2002-07-03 through 2020-01-27; source ID `msha-violations`

## Caveats

- This is public-record decision support, not legal advice or an official MSHA record.
- Missing data can indicate no event, publication delay, an unresolved identity, or inapplicability.
- Contractor production data is entity-level and is not attributed to this mine.

## Alternate representations

- HTML: `/mines/chukar-2602481`
- JSON: `/api/v1/mines/chukar-2602481`
- Silica records, units, sample status and quarterly means: `/api/v1/mines/2602481/silica` (snapshot year by default; `?year=all` for history; `&format=csv` for all matching rows)
- Relationship JSON: `/api/v1/mines/2602481/relationships`
- MCP resource: `mine://2602481/assessment`
- Complete Title 30 corpus: `/data/title30-sections.json`